The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 1989
Filed:
Jul. 08, 1987
Applicant:
Inventor:
Richard D Burke, Amherst, OH (US);
Assignee:
Nordson Corporation, Westlake, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F26B / ;
U.S. Cl.
CPC ...
34 5 / ; 34 10 ;
Abstract
A fluidizing bed hopper having a plenum chamber and an air pervious fluidizing bed plate defining the top surface of that plenum chamber. The fluidizing bed plate is of two ply and comprises a first ply of rigid porous structure and a second ply of non-woven filter media. In the preferred embodiment, the first ply of rigid porous structure comprises spherical glass beads bonded together to form a network of interstitial pores of substantially uniform size. The filter media preferably comprises point sealed, thermally bonded, non-woven polypropylene fibers.